EP2211332B1 - Bildsignalversorgungsvorrichtung, Bildanzeigevorrichtung und Steuerverfahren für eine Bildsignalversorgungsvorrichtung - Google Patents

Bildsignalversorgungsvorrichtung, Bildanzeigevorrichtung und Steuerverfahren für eine Bildsignalversorgungsvorrichtung Download PDF

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Publication number
EP2211332B1
EP2211332B1 EP10151835.5A EP10151835A EP2211332B1 EP 2211332 B1 EP2211332 B1 EP 2211332B1 EP 10151835 A EP10151835 A EP 10151835A EP 2211332 B1 EP2211332 B1 EP 2211332B1
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EP
European Patent Office
Prior art keywords
image signal
signal supply
image
supply apparatus
input source
Prior art date
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Application number
EP10151835.5A
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English (en)
French (fr)
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EP2211332A1 (de
Inventor
Hiroyuki Ichieda
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Seiko Epson Corp
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Seiko Epson Corp
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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/003—Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto
    • G09G5/006—Details of the interface to the display terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3102—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3197—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using light modulating optical valves
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
    • G06F3/1438—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display using more than one graphics controller
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2370/00—Aspects of data communication
    • G09G2370/10—Use of a protocol of communication by packets in interfaces along the display data pipeline

Definitions

  • the present invention relates to an image signal supply apparatus, an image display apparatus connected to the image signal supply apparatus, and a control method of image signal supply apparatus.
  • a document camera is connected to a projector and an image imaged by the document camera is projected by the projector.
  • an image display system a configuration has been suggested in which the color tones or brightness of an image projected by the projector is controlled by the document camera ( JP-A-2003-101818 ).
  • a projector includes plural input interfaces and an image from a document camera cannot be immediately displayed when the document camera is connected to the projector which is being connected to an input device other than the document camera to display an image. Accordingly, the user needs to switch an input source to the document camera by using a projector remote controller or operating a panel switch disposed in the projector; however, at this time, the user has to move to the place of the projector or the place in which the projector remote controller is located. Accordingly, the operability is not good.
  • WO 2009/001879 discloses a data receiver apparatus comprising input ports complying with a digital interface standard. Each input port comprises a voltage signal terminal receiving a prescribed voltage signal, a detection terminal outputting a connection detection signal, a data input terminal receiving a data signal, and an address terminal transmitting a physical address. A nonvolatile memory is connected to the address terminal. A connection detection signal output from the detection terminal is set to a detection-state voltage irrespective of whether the data input terminal is selected.
  • US 2004/239816 discloses a signal selection apparatus comprising a plurality of digital signal input terminals.
  • a signal processing unit has a video display unit and is configured to process signals input from the plurality of digital signal input terminals and to output the processed signals to the video display unit.
  • the apparatus includes an input state detection unit configured to detect input states of signals to the plurality of digital signal input terminals. Also included is a selection/supply unit configured to select, when the input state detection unit detects that signals are input to the plurality of digital signal input terminals, an input signal input to the digital signal input terminal, which is designated in advance, and to supply the selected input signal to the signal processing unit.
  • An advantage of some aspects of the invention is to improve the operability by facilitating the switching of input sources in a projector.
  • an image signal supply system as defined in claim 1.
  • the switching instruction output unit by causing the switching instruction output unit to output the instruction signal instructing to switch the input source to the image display apparatus via the communication unit, the input source of an image to be displayed by the image display apparatus can be switched by the use of the image signal supply apparatus. Therefore, with the image signal supply apparatus according to the invention, since a user need not move to a place in which the image display apparatus or the remote controller of the image display apparatus is located, convenience is good.
  • the image signal supply apparatus further includes an imaging unit imaging an image of a subject.
  • the image signal supply apparatus can be used as a camera imaging an image of a subject.
  • the image signal supply apparatus further includes: a foldable arm holding the imaging unit; and an arm unfolding sensor sensing that the foldable arm is unfolded, wherein the switching instruction output unit outputs the instruction signal when the arm unfolding sensor senses that the foldable arm is unfolded.
  • the communication unit carries out communication conforming to a USB standard.
  • USB which is a general-purpose interface.
  • an image display apparatus as defined in claim 5.
  • the input source of an image to be displayed can be switched by the use of the image signal supply apparatus. Accordingly, the user of the image signal supply apparatus need not move to the place in which the image display apparatus or the remote controller of the image display apparatus is located so as to switch the input source of the image display apparatus, and thus the operability thereof is excellent.
  • Fig. 1 is a diagram schematically illustrating a projector system according to an embodiment of the invention.
  • the projector system 100 includes a projector 10 and four image input apparatuses connected to the projector 10, such as a document camera 50, a personal computer 90, a video tape recorder (VTR) 91, and a DVD player 92.
  • These image input apparatuses provide input sources of images to the projector 10.
  • the image may be any of a still image and a moving image (that is, video).
  • the document camera 50 acquires an image.
  • the projector 10 selects a desired input source from the input sources and displays (projects) an image on a screen SC on the basis of the selected input source.
  • the document camera 50 includes a base member 52, a mounting plane 54, an arm 56, a camera head 58, and an operation panel 60.
  • the mounting plane 54 is disposed on the base member 52 and a subject T such as a sheet of paper having characters or figures drawn thereon and a stereoscopic object is mounted thereon.
  • the arm 56 holds the camera head 58.
  • the camera head 58 includes a lens, an LED, and a photoelectric conversion device such as a CCD and images an image of the subject T mounted on the mounting plane 54.
  • the operation panel 60 includes plural buttons (button type switches) and allows a user to input an operating instruction to the document camera 50.
  • the arm 56 may extend upward from the base member 52 and then be fixed, or may foldably rotate toward the base member 52.
  • the document camera 50 can be compactly arranged.
  • a subject By unfolding the folded arm 56, a subject can be imaged.
  • the document camera 50 having the above-mentioned configuration images an image of the subject T mounted on the mounting plane 54 and outputs an image signal indicating the imaged image to the projector 10.
  • the projector 10 and the document camera 50 are USB-connected to each other with a USB cable 62.
  • Fig. 2 is a diagram illustrating the internal configuration of the projector 10 and the document camera 50.
  • the projector 10 includes a controller 20, a storage unit 22, an operation unit 24, a USB interface unit 26, an input interface unit 28, an input source switching unit 30, an image processor 32, and a projection unit 34.
  • Reference numeral 36 represents a bus and connects the controller 20 to the units 22 to 32 other than the projection unit 34.
  • the controller 20 is constructed by a CPU or the like and operates in accordance with computer programs stored in the storage unit 22 to control the units 22 to 32.
  • the storage unit 22 stores image data or various computer programs.
  • a known USB module, a USB class driver, an image display program, and a program for a switching process to be described later are stored as the computer programs.
  • the operation unit 24 serves to input an operation instruction from a user to the projector 10 and includes an operation panel (not shown) and a remote controller receiver (not shown).
  • the operation panel and the remote controller are provided with an input source switching button (not shown) for switching an input source of an image to be displayed by the projector 10.
  • the USB interface unit 26 is an interface used to transfer control data or image data with an external device on the basis of a USB (Universal Serial Bus) standard.
  • the document camera 50 is connected to the USB interface unit 26.
  • the input interface unit 28 is an interface used to transfer control data and image data with an external device other than a USB, and includes an RGB interface, a video interface, and an S-video interface.
  • the RGB interface is connected to the personal computer 90, the video interface is connected to the VTR 91, and the S-video interface is connected to the DVD player 92.
  • the input source switching unit 30 switches the input source of the image to be displayed by the projector 10 by selecting one interface out of the USB interface unit 26 and the interfaces included in the input interface unit 28.
  • the image processor 32 generates display image data for image display on the basis of the image data or video data input from the interface selected by the input source switching unit 30.
  • the projection unit 34 includes a light source 342, light modulators 344 (344R, 344G, and 344B), a projection lens 346, a lighting operating system 341, a color separating optical system 343, a relay optical system 345, and a synthesis optical system 347.
  • the projector 10 according to this embodiment includes a transmissive liquid crystal panel as the light modulators 344.
  • White light emitted from the light source 342 is separated into a red beam, a green beam, and a blue beam while passing through the lighting optical system 341, the color separating optical system 343, and the relay optical system 345, and the separated beams are modulated by the light modulators 344 on the basis of the display image data generated by the image processor 32 and are incident on the synthesis optical system 347.
  • the color image beams modulated by the light modulators 344 are synthesized by the synthesis optical system 347 and the synthesized image light is projected from the projection lens 346.
  • the synthesis optical system 347 can be constructed by a dichroic prism or the like.
  • the document camera 50 includes a controller 70, a storage unit 72, an operation unit 74, a USB interface unit 76, a lighting unit 78, a lighting controller 80, an imaging unit 82, an image processor 84, and a resolution switching unit 86.
  • Reference numeral 88 represents a bus and connects the controller 70 to the units 72 to 76, 80, 84, and 86 other than the lighting unit 78 and the imaging unit 82.
  • the controller 70 is constructed by a CPU or a DSP, and operates in accordance with computer programs stored in the storage unit 72 so as to control the units 70 to 86 included in the document camera 50.
  • the storage unit 72 stores image data or various computer programs.
  • a known USB module, a USB class driver, and a program for performing a switching instruction issuing process are stored as the computer programs.
  • the operation unit 74 serves to input an operation instruction from a user to the document camera 50 and includes an operation panel 60 (see Fig. 1 ) disposed in the document camera 50.
  • the operation unit 74 includes an input source switching button SB.
  • the input source switching button SB is disposed on the operation panel 60 shown in Fig. 1 and the function thereof will be described in detail later.
  • the USB interface unit 76 is an interface used to transfer control data or image data with an external device on the basis of the USB standard.
  • the USB interface unit 76 is connected to the USB interface unit 26 of the projector 10.
  • the USB interface unit 76 corresponds to the "communication unit" described in the claims.
  • the lighting unit 78 includes a light source such as an LED emitting light to the subject T.
  • the lighting controller 80 controls the turning-on and turning-off of the lighting unit 78.
  • the imaging unit 82 includes a photoelectric conversion device such as a CCD and a driving unit controlling an AE (automatic exposure)/AF (automatic focus) control operation.
  • the imaging unit 82 is built in the camera head 58 (see Fig. 1 ).
  • the image processor 84 performs an image process such as white balancing on the image signal corresponding to the image taken by the imaging unit 82.
  • the resolution switching unit 86 switches the resolution of the image taken by the imaging unit 82 into a resolution requested by the projector 10.
  • the request of the projector 10 is sent from the projector 10 via the USB I/F unit 76.
  • the projector 10 and the document camera 50 having the above-mentioned configurations operate as follows to display an image of the subject T (see Fig. 1 ). That is, when the document camera 50 and the projector 10 are connected to each other with the USB cable 62, the projector 10 establishes a connection to the USB I/F unit 76 of the document camera 50 via the USB I/F unit 26.
  • the controller 70 controls the lighting controller 80, the image processor 84, and the resolution switching unit 86 to take an image of the subject T mounted on the mounting plane 54 (see Fig. 1 ), and temporarily stores the image signal acquired by the imaging unit 82 in the storage unit 72. Thereafter, the controller 70 transmits the image signal stored in the storage unit 72 to the projector 10 via the USB I/F unit 76.
  • the controller 20 receives the image signal transmitted from the document camera 50 via the USB I/F unit 26 and controls the image processor 32 to generate the display image data on the basis of the received image signal. As a result, a projection beam modulated on the basis of the display image data is projected by the projection unit 34. As a result, the image of the subject T is displayed on the screen SC (see Fig. 1 ).
  • the projector 10 includes various input sources in addition to the document camera 50.
  • the controller 20 of the projector 10 activates the input source switching unit 30 to select one interface out of the USB interface unit 26 and the interfaces of the input interface unit 28, whereby the input source of an image to be displayed by the projector 10 is switched.
  • the operation unit 74 of the document camera 50 includes the input source switching button SB.
  • the input source switching button SB When the input source switching button SB is operated by the user, the input source of the image to be displayed by the projector 10 is switched similarly. Operations of the document camera 50 and the projector 10 when the input source switching button SB is pushed will be described now in detail.
  • Fig. 3 is a flowchart illustrating a switching instruction issuing process performed by the controller 70 of the document camera 50.
  • the switching instruction issuing process is repeatedly performed every predetermined time.
  • the projector 10 detects the document camera 50 and requests the document camera to transmit descriptor information.
  • the document camera 50 transmits descriptor information to the projector 10, whereby a USB connection is established between the document camera 50 and the projector 10 (step S100).
  • the projector 10 is called "host” and the document camera 50 is called “device”.
  • the "host” and the "device” are defined in the USB protocol.
  • the controller 70 of the document camera 50 determines whether the input source switching button SB disposed in the operation panel 60 is pushed (step S110). When it is determined that the input source switching button SB is pushed, the controller 70 transmits an instruction signal (hereinafter, referred to as "input source switching instruction signal") instructing to switch the input source to the projector 10 via the USB I/F unit 76 (step S120). Specifically, the document camera 50 transmits button IDs of various buttons and events of pushing and releasing the buttons to the projector 10 as the input source switching instruction signal.
  • the input source switching instruction signal is transmitted from the USB I/F unit 76 under the "control transmission” or the "interrupt transmission” of the USB communication control. That is, by temporarily storing data representing that the input source switching button SB is pushed in the storage unit 72 and receiving the data from the projector 10 via the USB I/F unit 26, the transmission of the input source switching instruction signal is carried out. In other words, the data representing that the input source switching button SB is pushed is transmitted as the input source switching instruction signal.
  • step S120 The controller 70 and the process of step S120 performed by the controller 70 correspond to the "switching instruction output unit" described in the claims. After the process of step S120 is performed, the switching instruction issuing process is temporarily ended by “return”. On the other hand, when it is determined in step S110 that the input source switching button SB is not pushed, the switching instruction issuing process is ended temporarily by "return".
  • Fig. 4 is a flowchart illustrating a switching process performed by the controller 20 of the projector 10.
  • the switching process is repeatedly performed every predetermined time.
  • the projector 10 as the "host” establishes a connection to the document camera 50 as the "device” (step S200).
  • the controller 20 of the projector 10 performs a process of receiving the input source switching instruction signal sent from the document camera 50 (step S210).
  • a negative determination is made in step S220, that is, it is determined that the input source switching instruction signal is not received, and the switching process is ended by "return".
  • step S220 when the input source switching instruction signal is received and it is determined in step S220 that the input source switching instruction signal exists, the controller 20 activates the input source switching unit 30 to perform the input source switching process of switching the displayed input source to the next one (step S230).
  • the input sources have priority.
  • the priority has an order of "computer” -> "video” -> "S-video” -> “camera”.
  • the "computer” represents the personal computer 90
  • the "video” represents the VTR 91
  • the "S-video” represents the DVD player 92
  • the "camera” represents the document camera 50.
  • the input source switching unit 30 performs a process of switching the input source to the next one.
  • the controller 20 determines whether the image signal is input from the input source switched in step S230 (step S240). Here, when it is determined that the image signal is input, the controller 20 activates the image processor 32 to perform an image display based on the input source (step S250).
  • step S240 when it is determined in step S240 that the image signal is not input from the input source, the controller 20 determines whether all the input sources other than the presently-displayed input source are completely detected in step S260. Here, when it is determined that all the input sources are not completely detected, the input source is switched to the next one again in step S230.
  • Fig. 5 is a diagram illustrating an example of the switching of the input source which is performed in the repeated processes of steps S230 to S260.
  • the input source is switched to the next "video” (step S230) as shown in (c) of the drawing.
  • the input source is switched to the next "S-video” (step S230) as shown in (d) of the drawing.
  • an image signal is input from the DVD player 92 as the "S-video” (Yes in step S240)
  • an image based on the DVD player 92 is displayed (step S250).
  • step S250 an image based on the document camera 50 is displayed (step S250) as shown in (f) of the drawing.
  • the input source switching button SB is pushed once more as shown in (g) of the drawing, the input source is switched to the "computer” having the higher priority.
  • an image signal is input from the personal computer 90 as the "computer”
  • an image based on the personal computer 90 is displayed (step S250) as shown in (a) of the drawing.
  • step S270 when it is determined in step S260 that all the input sources other than the presently-displayed input source are completely detected, the controller 20 performs a process of displaying an input source list picture (step S270).
  • step S270 When it is determined that all the input sources are detected, only the presently-displayed image signal is input to the projector 10 and thus the input source list picture is displayed on the screen SC, whereby the user is prompted to perform an operation to be described later.
  • Fig. 6 is a diagram illustrating an example of the input source list picture SS.
  • all source names of the image input devices connected to the projector 10 are displayed as a list in the input source list picture SS.
  • presence or absence of input of the image signal is shown.
  • the source names can be selected by causing the user to operate the document camera 50. That is, the user selects a desired source out of the plural source names by operating the operation panel 60. This selecting instruction is sent from the document camera 50 to the projector 10.
  • step S280 subsequent to step S270, the controller 20 receives the selecting instruction from the document camera 50 and displays the image based on the selected input source.
  • the input source of the source name selected from the input source list picture SS by the user is displayed on the screen SC.
  • the selected input source is the document camera 50
  • the image data is acquired by the document camera 50 and the image data of the document camera 50 is displayed.
  • the selecting instruction is not sent from the document camera 50 for a predetermined time
  • the display of the input source list picture SS is ended (not displayed).
  • step S280 or the process of step S250 After the process of step S280 or the process of step S250 is performed, the switching process is temporarily ended by "return".
  • the projector system 100 it is possible to switch the input source displayed by the projector 10 by pushing the input source switching button SB of the document camera 50. Accordingly, a user can switch the displayed input source without moving to a place in which the projector or the remote controller is located. Particularly, it is possible to switch the input source to the document camera 50 by pushing the input source switching button SB the necessary number of times. Accordingly, it is possible to improve the user operability.
  • the input source from which the image signal is not input is skipped even when the input source switching button SB is pushed. Accordingly, a desired image can be displayed rapidly.
  • the input source list picture When only the presently-projected image signal is input or when no image signal is input, it is possible to select the input source by the use of the input source list picture.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Studio Devices (AREA)
  • Projection Apparatus (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Image Input (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Facsimile Scanning Arrangements (AREA)

Claims (9)

  1. Bildsignalversorgungssystem, enthaltend:
    eine erste Bildsignalversorgungsvorrichtung (50),
    eine zweite Bildsignalversorgungsvorrichtung (90-92) und
    eine Bildanzeigevorrichtung (10), wobei jede der ersten Bildsignalversorgungsvorrichtung (50) und der zweiten Bildsignalversorgungsvorrichtung ein Bildsignal als eine Eingabequelle an die Bildanzeigevorrichtung (10) ausgibt,
    die erste Signalversorgungsvorrichtung (50) umfassend:
    eine Kommunikationseinheit (76), die eine Kommunikation mit der Bildanzeigevorrichtung (10) ausführt;
    einen Schalter (SB), der einen vorbestimmten Betrieb empfängt; und
    eine Schaltungsanweisungsausgabeeinheit (74), die ein Anweisungssignal über die Kommunikationseinheit (76) an die Bildanzeigevorrichtung (10) auf der Basis des vorbestimmten Betriebs, der auf dem Schalter (SB) ausgeführt wird, ausgibt,
    wobei die Bildanzeigevorrichtung (10) eine Eingabequellenschaltungseinheit (30) enthält, die auf der Bildanzeigevorrichtung angeordnet ist, wobei die Eingabequellenschaltungseinheit (30) der Bildanzeigevorrichtung konfiguriert ist, das Anweisungssignal von der ersten Bildversorgungsvorrichtung zu empfangen,
    dadurch gekennzeichnet, dass das Anweisungssignal die Bildanzeigevorrichtung (10) anweist, die Eingabequelle zwischen der ersten Bildsignalversorgungsvorrichtung (50) und der zweiten Bildsignalversorgungsvorrichtung (90-92) umzuschalten,
    die Eingabequellenschaltungseinheit (30) angepasst ist, die Eingabequelle zwischen der ersten Bildsignalversorgungsvorrichtung (50) und der zweiten Bildsignalversorgungsvorrichtung (90-92) in Antwort auf das Anweisungssignal umzuschalten, und
    jede Bildsignalversorgungsvorrichtung (50, 90-92) lösbar mit der Bildanzeigevorrichtung (10) verbunden ist.
  2. Bildsignalversorgungssystem nach Anspruch 1, ferner umfassend eine Bildgebungseinheit (82), die ein Bild eines Subjekts aufnimmt.
  3. Bildsignalversorgungssystem nach Anspruch 2, ferner umfassend:
    einen faltbaren Arm (56), der die Bildgebungseinheit (82) hält; und
    einen Armentfaltungssensor, der wahrnimmt, dass der faltbare Arm (56) entfaltet ist,
    wobei die Schaltungsanweisungsausgabeeinheit (74) das Anweisungssignal ausgibt, wenn der Armentfaltungssensor wahrnimmt, dass der faltbare Arm (56) entfaltet ist.
  4. Bildsignalversorgungssystem nach einem der Ansprüche 1 bis 3, wobei die Kommunikationseinheit (76) eine Kommunikation ausführt, die einem USB-Standard entspricht.
  5. Bildanzeigevorrichtung (10), die lösbar mit einer ersten Bildsignalversorgungsvorrichtung (50) und einer zweiten Bildsignalversorgungsvorrichtung (90-92) verbindbar ist, um so ein Bildsignal als eine Eingabequelle von jeder der ersten Bildsignalversorgungsvorrichtung (50) und der zweiten Bildsignalversorgungsvorrichtung (90-92) zu empfangen, die Bildanzeigevorrichtung (10) umfassend:
    eine Kommunikationseinheit (26), die angepasst ist, eine Kommunikation mit der ersten Bildsignalversorgungsvorrichtung (50) und der zweiten Bildsignalversorgungsvorrichtung (90-92) auszuführen;
    eine Eingabequellenschaltungseinheit (30), die angepasst ist, eine Eingabequelle zwischen der ersten Bildsignalversorgungsvorrichtung (50) und der zweiten Bildsignalversorgungsvorrichtung (90-92) umzuschalten; und
    ein Schaltungssteuergerät (20), das konfiguriert ist, die Eingabequellenschaltungseinheit (30) zu aktivieren, wenn ein Anweisungssignal zum Anweisen, die Eingabequelle umzuschalten, von der ersten Bildsignalversorgungsvorrichtung (50) über die Kommunikationseinheit (26) empfangen ist,
    dadurch gekennzeichnet, dass die Eingabequellenschaltungseinheit (30) angepasst ist, die Eingabequelle zwischen der ersten Bildsignalversorgungsvorrichtung (50) und der zweiten Bildsignalversorgungsvorrichtung (90-92) in Antwort auf das Anweisungssignal umzuschalten.
  6. Bildanzeigevorrichtung (10) nach Anspruch 5, wobei die Bildanzeigevorrichtung (10) ein Projektor ist, umfassend:
    eine Lichtquelle (342);
    einen Lichtmodulator (344), der Licht, das von der Lichtquelle (342) ausgestrahlt wird, auf der Basis eines Bildsignals, das von der Bildsignalversorgungsvorrichtung (50) zugeführt wird, in Bildlicht moduliert,; und
    eine Projektionslinse (346), die das Bildlicht projiziert.
  7. Steuerverfahren eines Bildsignalversorgungssystems, umfassend eine erste Bildsignalversorgungsvorrichtung (50), eine zweite Bildsignalversorgungsvorrichtung (90-92) und eine Bildanzeigevorrichtung (10), wobei jede der ersten Bildsignalversorgungsvorrichtung (50) und der zweiten Bildsignalversorgungsvorrichtung (90-92) ein Bildsignal als eine Eingabequelle an die Bildanzeigevorrichtung (10) ausgibt und lösbar mit der Bildanzeigevorrichtung (10) verbunden ist,
    wobei die erste Bildsignalversorgungsvorrichtung (50) eine Kommunikationseinheit (76) umfasst, die eine Kommunikation mit der Bildanzeigevorrichtung (10) ausführt, und einen Schalter (SB), der einen vorbestimmten Betrieb empfängt, und wobei die Bildanzeigevorrichtung (10) eine Eingabequellenschaltungseinheit (30), die die Eingabequelle umschaltet, enthält,
    das Steuerverfahren umfassend:
    Einrichten einer Verbindung zwischen der ersten Bildsignalversorgungsvorrichtung und der Bildanzeigevorrichtung (10); und
    Ausgeben eines Anweisungssignals über die Kommunikationseinheit (76) an die Bildanzeigevorrichtung (10) auf der Basis des vorbestimmten Betriebs, der auf dem Schalter (SB) durchgeführt wird,
    dadurch gekennzeichnet, dass das Anweisungssignal die Bildanzeigevorrichtung (10) anweist, die Eingabequelle zwischen der ersten Bildsignalversorgungsvorrichtung (50) und der zweiten Bildsignalversorgungsvorrichtung (90-92) umzuschalten, und
    die Eingabequellenschaltungseinheit (30) die Eingabequelle zwischen der ersten Bildsignalversorgungsvorrichtung (50) und der zweiten Bildsignalversorgungsvorrichtung (90-92) in Antwort auf das Anweisungssignal umschaltet.
  8. Steuerverfahren nach Anspruch 7, ferner umfassend ein Bereitstellen einer Bildgebungseinheit (82), die ein Bild auf einem Subjekt abbildet.
  9. Steuerverfahren nach Anspruch 8, ferner umfassend:
    Bereitstellen eines faltbaren Arms (56), der die Bildgebungseinheit (82) hält;
    Bereitstellen eines Armentfaltungssensors, der wahrnimmt, dass der faltbare Arm (56) entfaltet ist; und
    Ausgeben des Anweisungssignals, wenn der Armentfaltungssensor wahrnimmt, dass der faltbare Arm (56) entfaltet ist.
EP10151835.5A 2009-01-27 2010-01-27 Bildsignalversorgungsvorrichtung, Bildanzeigevorrichtung und Steuerverfahren für eine Bildsignalversorgungsvorrichtung Active EP2211332B1 (de)

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TW201042357A (en) 2010-12-01
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